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2014-10-26T14:26:31+02:00
0,(4)=4/9
2intreg1/3=(2·3+1)/3=7/3
(-4/9)·(7/3)·75/100+(-4/10)·(-25/36)+75/100=simplificam ce se poate
-7/9+5/18+3/4=(-14+5)/18+3/4=-9/18+3/4=-1/2+3/4=(-2+3)/4=1/4=
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